November 2017
Intermediate to advanced
416 pages
14h 8m
English
book
Parallel Programming
by Bertil Schmidt, Jorge Álvaro Gonzalez-Martinez, Christian Hundt, Moritz Schlarb
Content preview from Parallel Programming
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Chapter 6
OpenMP
Abstract
OpenMP is an application programming interface (API) for platform-independent shared-memory parallel programming in C, C++, and Fortran. It pursues a semi-automatic parallelization approach which allows for the augmentation of sequential code using simple compiler directives in contrast to the explicit programming model of C++11 multithreading which involves the manual spawning, joining, and synchronization of threads. As an example, complex schedules, task parallelism, the convenient parallelization of loops and reductions can be realized with just a few additional lines of code. Despite its simplicity, the parallelization efficiency of OpenMP-augmented CPU code is often as good as handcrafted solutions using ...
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